Enzymatic glycosylation using 6-O-acylated sugar donors and acceptors: beta-N-acetylhexosaminidase-catalysed synthesis of 6-O,N,N'-triacetylchitobiose and 6'-O,N,N'-triacetylchitobiose

Carbohydr Res. 2001 Mar 22;331(2):143-8. doi: 10.1016/s0008-6215(01)00027-1.

Abstract

p-Nitrophenyl 6-O-acetyl-2-acetamido-2-deoxy-beta-D-glucopyranoside (5a) was used as the glycosyl donor in a beta-N-acetylhexosaminidase-catalysed (from Penicillium brasilianum) glycosylation of GlcNAc yielding 6'-O,N,N'-triacetylchitobiose (6), while 6-O-acetyl-2-acetamido-2-deoxy-beta-D-glucopyranose (3a) served as a selectively protected acceptor in a transglycosylation reaction catalysed by the same enzyme to yield 6-O,N,N'-triacetylchitobiose (4).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aspergillus oryzae / enzymology
  • Disaccharides / chemical synthesis*
  • Disaccharides / chemistry
  • Glycosylation
  • Molecular Structure
  • Penicillium / enzymology
  • beta-N-Acetylhexosaminidases / chemistry
  • beta-N-Acetylhexosaminidases / isolation & purification
  • beta-N-Acetylhexosaminidases / metabolism*

Substances

  • Disaccharides
  • chitobiose
  • beta-N-Acetylhexosaminidases